LG KG110 Service Manual page 84

1 2 3
VBAT
A
R200
10K
SW20
R209 680
POWER
B
C
SW1 SW2
RIGHT UP
SW5 SW6
3 2
SW9 SW10
D
6 5
SW13 SW14
9 8
SW17 SW18
E
# 0
F
C
KEY BACKLIGHT
VBAT
(6 LIGHTS )
D
E
F
1 2 3
LG(42)-A-5505-10:01
4 5 6 7
KEY PAD
KEYON
KEY_COL0
KEY_COL1
KEY_COL2
KEY_COL3
KEY_COL4
SW3 SW4 SW22
CLR
DOWN
LEFT
R205 680
KEY_ROW0
SW7 SW8
1
MENU
R206 680
KEY_ROW1
SW11 SW12
4
S2(OK)
R207 680
KEY_ROW2
SW15 SW16
7
SEND
R208 680
KEY_ROW3
SW19 SW21
* SELECT
R210 680
KEY_ROW4
R262
VINNORP
100
C263
39p
R263
VINNORN
100
KEYBOARD_BACKLIGHT
4 5 6 7
8 9 10
VMEM
VMEM VMIC
C231 39p
R232
0
GND
2 3
VCC R233
IN
1
C233 0
39p
U204
NLAST4599DFT2G
R238
NA
VMIC
CLOSE TO MIC
R264
1K
R265 C261 C262
10u
39p
2.2K
R261
MIC200
0
C264 1
2
39p
C265
OB4-15L42-C33L
0.1u
R266 C266 C267
39p 39p
2.2K
Iss. Notice No.
8 9
11 12 13
EAR JACK
VMEM
VMIC_N VMEM VMEM
R231
100K
R234
VMIC_ON C232
1M 39p
R235
NA
R236 1K R237
5
VIN- 4
VCC 1 R239 0
2.2K
HOOK_DETECT
VIN+ 3 OUT
GND
C234 C235 2
U205
LMV7291MGX-NOPB
10u 39p R240
510K
C236 10u R241 4.7
HEADSET_SPK_P
R242 0
JACK_DETECT
R277 0 R243 4.7
HEADSET_MIC_P
AUDIO
VBAT
C280 C276 C275
1u NA NA
(1608) (1608)
U202
MAX9718
C290 1u R275 0
4 10
SPK_P IN+ OUT+
C291 1u R276 0
2 6
SPK_N
IN- OUT-
1 5
AMP_SHDN SHDN BIAS RCV_P
3 8
AMP_SHDM RCV_N
SHDM NC
C277
0.1u
R283
NA
R284 NA
SPK_RCV_P
C272
39p
SPK_RCV_N
C273 C274
39p 39p
Section Date Sign & Name
06/05/30 Cai Xinchao
Designer
Checked
Approved
LG Electronics Inc.
Date Name
14 15 16
A
B
J200
5
1
3
C
4
2
D
SPK_RCV_SEL SELECT
SPEAKER E
VBAT HIGH
RECEIVER
LOW
C271
1u
U201
MAX4684EBC_T
C4 C2
NO1 IN1 SPK_RCV_SEL
F
A4 A2
NO2 IN2
R271 0
C1 C3
NC1 COM1 SPK_RCV_P
A1 A3 R272 0
SPK_RCV_N
NC2 COM2
R280
(FOR TUNING NOISE)
10K
C
RC201
RC202
D
E
Sheet/
Sheets
KG110
MODEL
2/4
DRAWING
AUDIO, MMI
NAME
DRAWING
Ver 1.0
NO.
LG Electronics Inc.